‘A
mantra should be obtained only from the Guru and should be chanted according to the science of
Matras. A
matra is that with which one realises the magnitude of the sound of words. The science of
Matras, that is the correct pronunciation of the
mantras as regards their notes such as
aroha, avaroha, udatta, anudatta, svarit, prachay, etc. is of special importance. If there is an error in that then the deleterious effects that can be caused are described with examples in the teachings of Panini as -
मन्*त्रो हीन: स्*वरतो वर्णतो वा मिथ्*याप्रयुक्तो न तमर्थमाह ।
स वाग्*वज्रो यजमानं हिनस्*ति यथेन्*द्रशत्रु: स्*वरतोऽपराधात्* ।
The meaning: The
mantra without proper pronunciation of vowels (
svar) and consonants (
varna), that is the utterance of a
mantra in a faulty manner makes it faulty and does not convey the intended meaning. Instead it gets converted into a verbal thunderbolt and harms the one chanting it, as had occurred in the case of the word
Indrashatru with faulty pronunciation of the vowels.
The compound word
Indrashatru could have two meanings, one being “Indra’s enemy” (the slayer of Lord Indra) from
Tatpurush Samas and “the one whose enemy is Lord Indra” (the one who will be slain by Lord Indra) from
Bahuvrihi Samas. Since the first meaning was intended for Tvashta he had to utter the note of the last letter of the entire word in a lofty tone. He however, uttered the last letter of the first word in the
Samas in a lofty tone. Consequently, instead of a son being born to slay Lord Indra, a son, Vrutra who would be killed by Lord Indra was born.